Question
Determine the work done by a force in taking a particle along the curve
Answer :
Word Count : 132
Let's compute the work $W=\displaystyle\int_C \mathbf F\cdot d\mathbf r$ with $$ \mathbf F=(x+2y)\mathbf i+(x-y)\mathbf j,\quad x(t)=2\cos t,\; y(t)=4\sin t,\; t\in[0,\pi/4]. $$ First find $\mathbf r'(t)$: $$ __________ _______ ___ _________ ______ ________ _____ _________ _______ ____ __________ ____.
_____ __________ __________ ________ ___ _______ ___ _________ ___ __________ ____ ____.
________ _________ __________ ______ ___ _____ _______ _______ ___.
_____ _______ _______ ____ _____ ________ ____ _______ ____ _______ _________ ____.
___ ______ _______ ___ __________ ___ _____ _________ ___.
______ ______ ________ _______ _____ _______ ______ _________ ____.
_______ _____ _______ ___ ____ __________.
_______ ________ ________ ________ ___ ________ ______ _________ ________ ________ ________.
___ ___ ______ _______ _______ _____ _________ _______ ______ _________ _______.
____ ____ __________ ________ ______ ________ _______ _______ _________.
________ _________ ______ _______ ___ _____.
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Let's compute the work $W=\displaystyle\int_C \mathbf F\cdot d\mathbf r$ with $$ \mathbf F=(x+2y)\mathbf i+(x-y)\mathbf j,\quad x(t)=2\cos t,\; y(t)=4\sin t,\; t\in[0,\pi/4]. $$ First find $\mathbf r'(t)$: $$ __________ _______ ___ _________ ______ ________ _____ _________ _______ ____ __________ ____.
_____ __________ __________ ________ ___ _______ ___ _________ ___ __________ ____ ____.
________ _________ __________ ______ ___ _____ _______ _______ ___.
_____ _______ _______ ____ _____ ________ ____ _______ ____ _______ _________ ____.
___ ______ _______ ___ __________ ___ _____ _________ ___.
______ ______ ________ _______ _____ _______ ______ _________ ____.
_______ _____ _______ ___ ____ __________.
_______ ________ ________ ________ ___ ________ ______ _________ ________ ________ ________.
___ ___ ______ _______ _______ _____ _________ _______ ______ _________ _______.
____ ____ __________ ________ ______ ________ _______ _______ _________.
________ _________ ______ _______ ___ _____.
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